Critical auth and limited access-list

Similar Questions

• Cisco ISE and WLC Access-List Design/scalability

  Hello

  I have a scenario that wireless clients are authenticated by the ISE and different ACL is applied depending on the rules in the ISE. The problem I have seen is due to the limitation on the Cisco WLC that limit only 64 input access list. As the installer has only a few IVR/interfaces and several different access lists are applied to the same base on user groups interface; I was wondering if there may be an evolutionary design / approach according to which the access list entries can evolve next to create a vlan for each group of users and apply the access list on the interface of layer 3 instead? I illustrated the configuration below for reference:

  Group of users 1 - apply ACL 1 - on Vlan 1

  User 2 group - apply ACL 2 - on the Vlan 1

  3 user group - apply ACL 3 - on the Vlan 1

  The problem appears only for wireless users, he does not see on wired users as the ACLs can be applied successfully without restriction as to the switches.

  Any suggestion is appreciated.

  Thank you.

  In fact, you have limitations on the side of the switch as well. Long ACL can deplete resources AAGR of the switch. Take a look at this link:

  http://www.Cisco.com/c/en/us/support/docs/switches/Catalyst-3750-series-switches/68461-high-CPU-utilization-cat3750.html

  The new WLCs based on IOS XE and not the old OS Wireless/Aironet will provide the best experience in these matters.

  Overall, I see three ways to overcome your current number:

  1. reduce the ACL by making them less specific

  2 use L3 interfaces on a switch L3 or FW and the ACL is applied to them

  3. use the SGT/SGA

  I hope this helps!

  Thank you for evaluating useful messages!

• ASA5505 VPN Site to site and limiting access - URGENT

  I'll admit knowledge limited to the front, so forgive me if I look like a fool.  The company that I work began recently to hosting our application for some of our customers. to do this, we are renting rack space, connections and equipment in a data center.  We must send data to our request for an application in the center of data of our customers.  They have an ASA 5505.

  Our data center will support VPN site-to-site and nothing else.  Our client find it unacceptable, citing security and the inability to restrict access to only the small number of servers, our application needs to access.  I have to be able to talk intelligently and with the facts (and, preferably, examples of configuration on hand) with their staff of the IOC and network in the next day or so.

  The ASA 5505 can be configured for a VPM from site to site with our data center which limits our application server to access a limited set of IP addresses within their network?  If so, this is quite easily possible?  Anyone done this?

  Thank you

  Leighton Wingerd

  Leighton,

  Sounds complicated problem - but are simple actuall.  Remember that a VPN ensures the transmission from site A to site B on a precarious environment - internet.  For example, you can DEFINE the traffic that goes through the VPN, you also DEFINE the traffic that will launch the VPN tunnel in the first place.  With these statements said - using your supposed information you would create valuable traffic as the exact traffic you want to allow through the vpn;

  access-list permits datacentre_2_client tcp host 1.2.3.4 host 192.168.1.2 eq 1521

  And you will use the same ACL to set which can cross traffic.  However, I know for a fact that an ODBC Oracle connection uses more than one TCP port!

  The confidentiality of data is something else - that your customer needs to define requirements.  An SSL connection is fine and dandy - you will just be to encrypt the traffic twice!

• WiFi in my new computer dell laptop with windows 8 limited access list

  I got a new laptop Dell with Windows 8. The wifi connection shows limited and I couldn't access the internet. I have a laptop with windows 7 that works well with wifi, please help

  Hi Carmel,

  Limited connectivity error means that the computer is connected to the router, but the PC has not been assigned a valid IP address.

  Method 1:
  I suggest you try the procedure described in the article and see if it helps.

  
  Wireless and wired network problems
  http://Windows.Microsoft.com/en-us/Windows/network-connection-problem-help#network-problems=Windows-7&V1H=win8tab4&V2H=win7tab1&V3H=winvistatab1&v4h=winxptab1

  Method 2:
  If the problem persists, I suggest you try to reset TCP/IP. Check if it helps.

  (a) boot to the view from the office.

  (b) open command prompt, right click in the left corner when the window appears and select (admin) command prompt.

  (c) at the command prompt, copy and paste (or type) the following command, and press ENTER:
  
  netsh int ip reset c:\resetlog.txt

  
  Note: if you do not specify a path of the directory for the log file, use the following command:

  netsh int ip reset resetlog.txt

  (d) restart the computer.

  See the article and check if that helps.

  Why can't I connect to the Internet?
  http://Windows.Microsoft.com/en-in/Windows-8/cant-connect-to-Internet

  Hope this information helps. Answer the post with an up-to-date issue report to help you further.

• Order of access-list syntax

  Hello

  I have a small question about the order in the syntax for an access list. I made my list of access work now, but I don't understand why.

  It looks like this when it did not work:

  (outside interface incoming traffic)

  access list 100 permit tcp any any established journal

  access-list 100 permit udp any any eq field journal

  access list 100 permit tcp any any eq field journal

  access-list 100 deny ip any any newspaper

  To make this work, I had to add these two lines:

  access-list 100 permit udp any eq field no matter what newspaper

  access list 100 permit tcp any eq field no matter what newspaper

  I do not understand the difference between

  access-list 100 permit udp any eq field all

  and

  access-list 100 permit udp any any eq field

  If you're wondering what the main goal with the list, it is to allow traffic from the inside to the outside and deny all other traffic, except the connections from the inside and the UDP traffic that is necessary because UDP doesn't have a domain.

  Hello

  Again, I think knowing that this 100 ACL is attached to the router's WAN interface in the direction 'in '. This means that its traffic control entering your network LAN.

  When we look at how DNS works now in what concerns this ACL

  • DNS lookup is usually made at the port of destination UDP/53
  • PC uses the random source for the DNS lookup port
  • Responses from DNS server for research with source UDP/53 port
  • Responses from DNS server to the computer on the port that the source PC search DNS

  So naturally you'll see responses from the host source and source UDP/53 port DNS

  If the ACL with the port of destination UDP/53 became all success, this would mean that you would host a DNS server and the DNS lookups were intended for your network.

  Also to your other question. If you set no ports using TCP/UDP in the ACL then he accepts any source/destination port

  Hope this helps

  Be sure to mark it as answered in the affirmative.

  -Jouni

• PIX 501 ICMP access list Question

  According to the book, I have the pix and firewall that I know of dealing with routers and switches access lists define what traffic is allowed outside the network. With pix access lists can only be applied one way, to the interface they enter, not leaving. It's my understanding, but when I do an ICMP command:

  PIX1 (config) # access - list ethernet1 permit icmp any any echo response

  PIX1 (config) # access - list icmp permitted ethernet1 everything all inaccessible

  Access-group ethernet1 PIX1 (config) # interface inside

  This does not work, but if I apply the access group to the external interface it works. I understand why it is like that.

  Thank you

  This works because the pix is not aware of session state for the way icmp traffic that it does for tcp and udp.

  By default, less access to a high to an interface is allowed, unless you have an acl applies to the interface of higer - then only what the acl permits will be allowed. So you can send outbound icmp echo request. However, for the response to be returned, you must allow that explicitly in an acl that is applied on the external interface, because the pix won't allow any outside traffic by default.

  Even for icmp unreachable, although I want to put in custody to be part of the config. Allow only the unattainable due to the ttl expired to facilitate detection of mtu path, not all unachievable.

  Let me know if it helps.

• When I go online on Skype, my internet will with limited access, and I'll offiline

  When I go online on Skype, my internet will with limited access, and I'll offiline

  Hello

  1. which version of Skype is currently installed on the computer?

  2 is this problem limited only when using Skype?

  3. what type of Internet connection you have (cable modem, DSL, or something else)?

  4 when it disconnects what do I you end up doing for her return to the connection?
  5. What is the exact error you get that tells you that the device is disconnected?
  6. what version of operating system you are using on the computer?

  Method 1:
  I suggest you run the network troubleshooter to check if it helps.

  Troubleshooting network in Windows 7 using:

  http://Windows.Microsoft.com/en-us/Windows7/using-the-network-troubleshooter-in-Windows-7
  You can provide the network store event logs.

  Method 2:
  You can update the latest drivers of NIC manufacturers.

  Windows 7: http://windows.microsoft.com/en-US/windows7/Update-a-driver-for-hardware-that-isn ' t-work properly

  Windows Vista: http://windows.microsoft.com/en-US/windows-vista/Update-a-driver-for-hardware-that-isn ' t-work properly

  The question you have posted is related to Skype and would be better suited to the Skype forum community. Please visit the link below to find a community that will provide the best support.
  http://Forum.Skype.com/

• struggling to get online, says limited access and check the network security key

  Im trying to connect to my neighbors router and he repeats to me limited access and verify the security key network, what do I do I have the password of the router but it won't let me connect and I have a great connection with him help pleas

  Hello

  I suggest you to refer to this link and check if it helps:

  http://answers.Microsoft.com/en-us/Windows/Forum/Windows_7-networking/limited-access-in-WiFi-though-correct-network-key/e08df2dd-500F-470D-ba60-63b25e726408

  It will be useful.

• I have three problems___the is first I get the error messages form I mesh and cannot access my profile or friends list ' ___Microsoft online which is a whoosie of my gave me element to modify registry keys but no items exist in the regisry

  I get the error messages form I mesh and cannot access my profile or friends list '

  MIicrosoft online which is a whoosie of my gave me element to modify registry keys but no items exist in the regisry

  For iMesh, you can go here...

  http://www.iMesh.com/community.html

  I don't understand the other two problems that you encounter.  If you please would explain what they are and what, if any, error messages that you receive.  Also, what antivirus do you use, and you run Windows XP SP3?

  --
  Gina Whipp
  Microsoft MVP (access)

  Please post all responses on the forum where everyone can enjoy.

• Vista Home Premium gives the message "linked to limited accessibility" and I cannot access the internet.

  I have Vista Home Premium and trying to connect to a WiFi spot, I get the message "linked to limited accessibility" and I cannot access the internet. I understand this is common for Vista and there is a fix for this problem, but want to make sure that I get the right one and can't seem to find anything referring to this issue on the Microsoft site

  Hello

  This problem happens only when connecting to a particular place for the WiFi?

  You can follow the suggestions and check out them.

  Method 1

  You can read the article.

  Message when a device on a Windows Vista-based computer uses a network bridge to access the network: "connected with limited access".

  http://support.Microsoft.com/kb/930517

  Method 2

  Disable IPv6.

  Try to uninstall IPv6 on all interfaces, the removal of virtual cards of IPv6 and reset the TCP/IP stack. To remove the IPv6, go to the properties for each network adapter, and deselect the check box next to the Protocol "Internet Protocol version 6 (TCP/IPv6), which will turn off, or select it and click on uninstall, which withdraw power off the computer.» Then go into Device Manager and remove any 4to6 adapters, adapters miniport WUN or tunnel adapters.

  NOTE: You should do this for each network connection.

  Method 3

  Temporary disable your security software.

  Disable the antivirus software

  http://Windows.Microsoft.com/en-us/Windows-Vista/disable-antivirus-software

  Enable or disable Windows Firewall

  http://Windows.Microsoft.com/en-us/Windows-Vista/turn-Windows-Firewall-on-or-off

  Note: Software antivirus and firewall can help protect your computer against viruses and other security threats. In most cases, you should not disable your antivirus software. If you do not disable temporarily to install other software, you must reactivate as soon as you are finished. If you are connected to the Internet or a network during the time that your antivirus software is disabled, your computer is vulnerable to attack.

  Method 4

  You can reset the TCP/IP stack.

  How to reset the Protocol Internet (TCP/IP)

  http://support.Microsoft.com/kb/299357

• Loss of connection with my router, shows only limited access and my network showed that unidentified

  Original title: unidentified network, missing the default gateway

  Hello

  So one day out of the blue I lost connection with my router. I was able to reconnect but this time around I had only limited access and my network showed non-identified. I tried to connect to a different wireless network, same thing. When I run ipconfig, I'm missing a value for the default gateway.

  I tried to:

  -Reinstall the drivers for the adapter

  -update the drivers

  -Reset my router

  -Gateway ipv4 manually of entry

  -kill lan via Device Manager drivers

  -scream at the computer

  I have a Setup to dual boot with Linux Mint along side Windows 7. When I boot in Linux it connects to any network without problem.

  Some help would be appreciated.

  Plug

  Windows 7 Ultlimate

  I7-4700MQ @2.4

  GTX 765M 2 GB

  8 GB RAM

  1 TB + 240SSD

  Realtek RTL8188CE wireless

  Hello Alex,.

  Thank you for your response.

  I appreciate your time.

  I suggest you to uninstall the network driver wireless and reinstall in compatibility mode.

  To uninstall the driver, follow these steps:

  a. press Windows + R keys together, type devmgmt.msc in the run window and press ENTER.

  b. Click to expand network adapters, right-click on the map and click Uninstall.

  c. restart the computer.

  Now you can Download driver from this link wireless.
  Reference:
  http://downloads.Eurocom.com/support/drivers/zip/238/238_RealtekWLAN_W764.zip

  For reference:
  EC http://www.Eurocom.com/EC/drivers (238)

  To reinstall the driver in compatibility mode, follow these steps:

  a. right click the driver file, and then click Properties.

  b. click on the compatibility tab.

  c. click on check "run this program in compatibility mode for" and select Windows XP(Service pack 3).

  d. click apply and ok.

  Now, install the driver.

  Please keep us updated.

  Thank you

• Cisco 837 and access list

  Hi all

  Sorry if my question sounds stupid, but I had a lot of problems with the syntax of the access list, especially to remove a line in an access list, for example:

  Here is my list of access

  access-list 120 allow ip 192.168.6.0 0.0.0.255 172.16.0.0 0.0.255.255

  access-list 120 allow ip 192.168.6.0 0.0.0.255 172.20.0.0 0.0.255.255

  access-list 120 allow ip 192.168.6.0 0.0.0.255 172.17.0.0 0.0.255.255

  If I want to delete only this line

  access-list 120 allow ip 192.168.6.0 0.0.0.255 172.16.0.0 0.0.255.255

  I do not know how, I if do:

  no access-list 120 allow ip 192.168.6.0 0.0.0.255 172.16.0.0 0.0.255.255

  all the access-list 120 is removed!

  Help, please!

  Olivier

  Hi, this is the usual behavior, if you delete the access list of the entire statement with sequence number is deleted.

  You can create a named extended access-list and have the sequence number for each statements.

  !

  Standard IP access list note

  permit 172.10.0.0 0.0.255.255

  10.1.1.0 permit 0.0.0.255

  permit 192.168.1.0 0.0.0.255

  deny all

  !

  and if you want to delete something in between, or any particular line, you can run the command like this that will remove this line instead of the entire ACL itself...

  Standard note of access-list (config) #ip

  (config-std-nacl) #no 3

  This configuration lines will remove the third line only (which is to allow the 192.168.1.0 0.0.0.255, leaving the other statements)

  regds

• Access-list group policy and IPSec tunnel.

  I have an IPSec Site to Site VPN tunnel that ends on the external interface of the firewall. My ftp server is located in a demilitarized zone. The DMZ has an access list applied to the interface. When I created the Group of the tunnel for the Site to Site, I create a group of tunnel with group policy and manage the policy with filters. The filter looks like an access list. Are the filter and the ACL interface work together? The one replace the other? How they work together.

  Once traffic ipsec, acl interface is not used until you have enabled "sysopt conn allowed-/ ipsec vpn. When you add a vpn-filter, it is what will filter the ipsec traffic.

• FWSM firewall context Access-List entry Limitation

  We have recently experienced an error on one of the firewall settings that it has reached the maximum access list entry. Anyone know what is the limit of the ACL entry by context or where can I find the documentaton for her. No work around to this issue? Thanks in advance.

  Hello

  This value changes depending on which version of the FWSM code you run - and Cisco gets not specific on how the FWSM calculates entered ACE to determine the number of entries you have on your own.

  If you run the command (syntax may be different in 3.x code):

  See the np 3 acl County property

  You get a result that looks like this:

  -CLS rule current account-

  CLS filter rule Count: 0

  CLS rule Fixup count: 11

  CLS is Ctl rule Count: 0

  CLS AAA rule count: 2187

  CLS is given rule Count: 0

  CLS Console rule count: 7

  Political CLS NAT rule Count: 0

  County of CLS ACL rule: 3491

  Add CLS uncommitted ACL: 0

  CLS ACL Del uncommitted: 0

  -CLS rule MAX - account

  CLS filter MAX: 3584

  CLS Fixup MAX: 32

  CLS is Ctl rule MAX: 716

  CLS is given rule MAX: 716

  AAA CLS MAX rule: 5017

  CLS Console rule MAX: 2150

  Political CLS NAT rule MAX: 3584

  CLS ACL rule MAX: 56627

  The counts are your real numbers, MAX is the maximum you can have. AAA rules are numbered for how As you can have applied altogether with your orders of "aaa game. For your question, it seems that you should check your 'CLS ACL rule Count' and 'CLS ACL rule MAX' and make sure you get not close to that number. If you are - try to limit the number of host entries (use the networks) where possible and try to use ranges of ports instead of individual ports in your access list statements.

  I'll try to find the syntax 7.x and post here later.

  -Jason

  Rate if this can help.

• access list for traffic crossing and IPSEC

  Hi, just a question fast and easy if everything goes well as im on thinking that he. IM on the establishment of the IPSEC between a Cisco router to another Cisco router. I want to only allow RDP through IPSEC.

  I of course implement the ACL for the SHEEP, but I'll have to implement another ACL application outside? interface allowing a specific RDP server and denying everything.

  Thank you

  David

  I have extracted this router to work. I changed some details to conceal the source, but it should illustrate what you need to do.

  !
  crypto ISAKMP policy 1
  BA aes 256
  preshared authentication
  Group 2
  address of examplekey key crypto isakmp 2.3.4.5
  !
  !
  Crypto ipsec transform-set esp - aes 256 esp-sha-hmac AES256SHA
  tunnel mode
  !
  cust_map 10 ipsec-isakmp crypto map
  defined peer 2.3.4.5
  game of transformation-AES256SHA
  match the address crypto_acl
  !
  interface GigabitEthernet8
  cust_map card crypto
  !
  crypto_acl extended IP access list
  host ip 192.168.25.52 permit 172.24.0.0 0.0.7.255
  !

  HTH

  Rick